How do I call Scripts in Love2d?

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Echo
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How do I call Scripts in Love2d?

Post by Echo » Thu Jul 26, 2012 10:05 am

how can I call a script in Love2d?
I want to have function love.draw in another script instead of shoving everything in main.lua.
or is this just impossible...

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mickeyjm
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Re: How do I call Scripts in Love2d?

Post by mickeyjm » Thu Jul 26, 2012 10:15 am

You can do it like this:

Put this at the top of main.lua (Where OTHERFILE is the name of your "script"):

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require "OTHERFILE" --Note the lack of ".lua"
and then it will run when main.lua is run.
Your screen is very zoomed in...

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ivan
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Re: How do I call Scripts in Love2d?

Post by ivan » Thu Jul 26, 2012 10:21 am

You can compile Lua script files at runtime using:

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require("filename")
Notice that you don't write the extension of the file, so:

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require("myfile.lua")
Should be:

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require("myfile")
If your file is not in the root folder (or one of the default folders searched by require) then its:

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require("directoryname.filename")
Where you use the "." symbol to indicate a directory (instead of the typical "/" or "\\").
There's also "dofile" but I heard it's unsupported in Love2D.

Make sure your functions in the required file are global.
Otherwise they won't be accessible from your main file.

If your functions in the included file are NOT global, you can have several options.
You can return a "table" containing the functions from the included file or use the "module" keyword:
myfile.lua

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local function foo() end
local function bar() end
local interface = { foo = foo, bar = bar }
return interface
Your main file:

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interface = require("myfile")
interface.foo()
The module keyword:
myfile.lua

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module ("interface")
-- the following function are NOT global
function foo() end
function bar() end
Your main file:

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require("myfile")
interface.foo()
These are just a couple of ways to avoid polluting the global namespace.

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Echo
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Location: Lucid Moon

Re: How do I call Scripts in Love2d?

Post by Echo » Thu Jul 26, 2012 2:09 pm

thanks for the awesome help. It was much easier that I thought.
(^-^)(^_^)(^0^)

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